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The model you have provided is not for a packaged rooftop but instead an indoor air handelr.
Do you have a picture? Carrier rooftop units usually begin with two numbers like 48-
A 4B4CN--- is a Bryant air handler model
This is a FB4CNP unithttps://www.theacoutlet.com/FB4CNP060L00-5-Ton-Bryant-Legacy-Air-Handler.htm